EP3183490A1 - Dispositif d'éclairage à élément de conversion de longueur d'onde à distance - Google Patents

Dispositif d'éclairage à élément de conversion de longueur d'onde à distance

Info

Publication number
EP3183490A1
EP3183490A1 EP15749748.8A EP15749748A EP3183490A1 EP 3183490 A1 EP3183490 A1 EP 3183490A1 EP 15749748 A EP15749748 A EP 15749748A EP 3183490 A1 EP3183490 A1 EP 3183490A1
Authority
EP
European Patent Office
Prior art keywords
wavelength converting
converting element
lighting device
envelope
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15749748.8A
Other languages
German (de)
English (en)
Inventor
Antonius Adrianus Maria Marinus
Vincent Stefan David Gielen
Wiebe WAGEMANS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Signify Holding BV
Original Assignee
Philips Lighting Holding BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Lighting Holding BV filed Critical Philips Lighting Holding BV
Publication of EP3183490A1 publication Critical patent/EP3183490A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/90—Methods of manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K99/00—Subject matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/08—Combinations of only two kinds of elements the elements being filters or photoluminescent elements and reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/508—Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/06—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for filtering out ultraviolet radiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • F21V9/45—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity by adjustment of photoluminescent elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/061—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention generally relates to the field of lighting devices comprising a remote wavelength converting element.
  • Solid state based light sources have significantly different optical characteristics compared to incandescent light sources.
  • solid state based light sources provide a more directed light distribution and a higher (i.e. cooler) color temperature compared to incandescent light sources. Therefore, efforts have been made in order to make solid state based lighting devices to better resemble traditional incandescent lighting devices in terms of light distribution and color temperature.
  • Wavelength converting material such as phosphor
  • the wavelength converting material may be positioned directly on the light source or in a separate element spaced from the light source, the latter normally being referred to as a remote wavelength converting element.
  • US 2012/0176804 shows a lighting device comprising an LED emitting ultraviolet (UV) light, which is converted by phosphor into visible light (such as white light).
  • UV ultraviolet
  • the phosphor is disposed at a light guide, which is a planar panel disposed above the LED such that the majority of the light emitted by the LED strikes the panel.
  • the light guide and the LED are covered by an envelope.
  • a drawback with such a lighting device is that it may be difficult to manufacture if the light guide is larger than the bottom opening of the envelope. It may e.g. require that the envelope is made in two pieces or that the light guide is made in a flexible material.
  • a lighting device and a method of manufacturing a lighting device having the features defined in the independent claims are provided.
  • Preferable embodiments are defined in the dependent claims.
  • a lighting device comprises at least one light source, a wavelength converting element adapted to convert a wavelength of light emitted by the at least one light source, at least one support arranged to support the wavelength converting element remote from the at least one light source, and an envelope adapted to enclose the wavelength converting element and at least a portion of the at least one support.
  • the at least one support is arranged to be able to pivot relative to the wavelength converting element.
  • the support and the wavelength converting element may be moved relative to each other upon assembly of the lighting device.
  • the support and the wavelength converting element may be assembled into one unit prior to insertion in the envelope.
  • the wavelength converting element and the support may then be pivoted relative to each other so as to be set in a state facilitating insertion of the unit into the envelope. Subsequently, the unit may be pivoted into a final state inside the envelope.
  • the present aspect enables using a rigid wavelength converting element and an at least partially rigid support, as these two components may be moved relative to each other for facilitating insertion of the unit in the envelope.
  • the present aspect increases the freedom of designing the shape and orientation of the wavelength converting element inside the envelope as the flexibility of the unit upon insertion is greater compared to a completely rigid arrangement. For example, insertion of the unit inside the envelope via a relatively small opening of the envelope may be facilitated.
  • Light emitted by the light sources incident on the wavelength converting element may be converted in terms of color and may be reemitted by the wavelength converting element.
  • the wavelength converting element is supported remote from the light source, i.e. the wavelength converting element is elevated (or spaced) from the light source (and preferably from any heat sink arranged at a base of the lighting device), the light emission from the lighting device is increased in lateral and backward direction, thereby providing a more omnidirectional light distribution of the lighting device.
  • the lighting device according to the present aspect may better resemble a traditional incandescent lighting device. Further, improved cooling of the lighting device is enabled since the light source may be arranged close to a heat sink with reduced impact on the light distribution.
  • the lighting device may further comprise a base adapted to be coupled to a light socket, wherein the envelope may have an opening adapted to be coupled to the base.
  • the base may be arranged to mechanically and/or electrically couple the lighting device to a light socket.
  • the base may e.g. comprise any type of connector, such as a screw connector or a bi-post connector for connecting the lighting device to a light socket.
  • the base may further include driving electronics for driving the light source and/or a heat sink for dissipating heat from the light source.
  • the light source and/or the support may optionally be coupled to the base.
  • the wavelength converting element may have an elongated shape and may be arranged to be able to pivot with respect to the at least one support in a plane extending along a longitudinal direction of the wavelength converting element (i.e. the direction in which the elongated wavelength converting element
  • a length of the wavelength converting element as measured along the longitudinal direction may be greater than a maximum width of the opening of the envelope, and a maximum width of the wavelength converting element as measured across (such as perpendicular to) the longitudinal direction may be smaller than the maximum width of the opening of the envelope.
  • the present embodiment is advantageous in that it enables having an elongated wavelength converting element being relatively long and arranged to extend inside the envelope across an optical axis of the lighting device and a relatively small base, thereby providing increased light emission in backward directions.
  • the support may be arranged to extend in a direction crossing the longitudinal direction of the wavelength converting element when mounted in a final position inside the envelope.
  • the support may be mounted to the base and/or the envelope.
  • the support may be pivoted so as to extend (substantially) along the longitudinal direction of the wavelength converting element. The unit may then be moved through the opening of the envelope along its longitudinal direction.
  • the unit can pass the opening of the envelope.
  • the shape of the cross-section of the wavelength converting element may be adapted to pass through the opening of the envelope.
  • the present embodiment allows using an envelope made of a single piece of material since the unit can be inserted in the envelope via the opening of the base. Hence, no visible glue or welding joint may be present in the envelope.
  • the wavelength converting element may be pivotal with respect to the at least one support around an axis crossing (such as being substantially perpendicular to) a longitudinal direction of the wavelength converting element.
  • the at least one support may comprise two supports, each one arranged to be able to pivot relative to the wavelength converting element, which is advantageous in that the orientation of the wavelength converting element may be adjusted after it has been inserted in the envelope by adjusting the positions of the two supports. For example, if the two supports are moved in substantially opposite directions along their respective longitudinal directions, the wavelength converting element may be tilted.
  • the lighting device may comprise a single support or any other number of supports.
  • each of the two supports may be arranged to be able to pivot with respect to the wavelength converting element in a plane, and the planes may extend along each other.
  • each of the two supports may pivot with respect to the wavelength converting element around an axis, and the axes may extend along the same direction.
  • the pivotal planes of the two supports may be substantially parallel.
  • the pivot axes of the two supports may be substantially parallel.
  • the unit formed by the wavelength converting element and the supports may be pivoted so as to extend along substantially the same direction, thereby facilitating inserting the unit in the envelope.
  • the one or more supports may be arranged to pivot in more than one plane.
  • the at least one light source may be adapted to emit ultraviolet (UV) light, whereby light emitted directly from the light source without passing the wavelength converting element may not be visible and the wavelength converting element may appear as the only light source in the lighting device. Further, the supports may be hardly visible in the UV light, whereby the wavelength converting element may appear to float inside the envelope.
  • the light source may be a UV (preferably UV-A) LED.
  • the light source may be adapted to emit deep blue light (such as light having a wavelength around 400-420 and preferably around 410 nm) and/or white light.
  • the at least one light source may be adapted to emit light at least in a first wavelength range
  • the wavelength converting element may be adapted to convert light emitted by the at least one light source into at least a second wavelength range different from the first wavelength range.
  • the envelope may be adapted to hinder at least a portion of the light emitted by the at least one light source in the first wavelength range to exit the lighting device, thereby making the light source less visible from outside the envelope and the wavelength converting element may appear as the only light emitting component in the lighting device.
  • the first wavelength range may be the UV wavelength range (such as around 300 - 400 nm) and optionally also the wavelength range for deep blue visible light (such as around 400 - 420 nm), and the second wavelength range may be a range within the visible spectrum, such as around 450-750, and preferably around 550 - 750 nm.
  • the amount of UV light exiting the lighting device and exciting white objects in the surroundings may be reduced.
  • Material for absorbing and/or reflecting the second wavelength range may e.g. be integrated in the material of the envelope and/or applied as a coating on the envelope.
  • the lighting device may further comprise at least one additional light source adapted to emit light within the second wavelength range (such as within a visible spectrum).
  • the additional light source may be directly visible without having to pass the wavelength converting element.
  • the additional light source may be arranged so as to achieve a desired light distribution pattern of the lighting device.
  • the additional light source may e.g. be adapted to emit white, yellow, amber or red light.
  • the wavelength converting element may be adapted to convert light emitted by the at least one light source into at least one of the colors: white, yellow, amber and red, thereby resembling the light of an incandescent light source.
  • the wavelength converting element may comprise a light transmissive body and a wavelength converting material disposed at the light transmissive body.
  • the wavelength converting material may be arranged in a pattern at the light transmissive body. Portions of the wavelength converting element not provided with wavelength converting material may be less visible while the portions provided with wavelength converting material may emit light and be more visible.
  • the wavelength converting material may be arranged in a filament-like manner so as to better resemble an incandescent lighting device.
  • the wavelength converting material may comprise phosphor.
  • the envelope may be made in a single piece of material, such as glass or plastic.
  • the unit formed by the wavelength converting element and the support can be pivoted (or folded) upon insertion in the envelope, the need of having a two piece envelope assembled to surround the unit is reduced. Instead, the unit may be inserted via the opening of the envelope adapted to be coupled to the base. Thus, welding or gluing joints in the envelope may be reduced or even eliminated.
  • the envelope may be clear transparent, whereby the wavelength converting element may be more clearly visible through the envelope.
  • each one of the wavelength converting element and the at least one support may be at least partly rigid, thereby making the lighting device more robust, and enabling use of cheaper materials, such as glass, rigid plastic and/or metal.
  • the support and the wavelength converting element can be pivoted (or folded) relative to each other for enabling inserting the unit into the envelope even though a major portion of each one of the wavelength converting element and the support is rigid.
  • the support may be (at least almost) completely rigid and the pivotal motion between the support and the wavelength converting element may be achieved by a hinged connection between the support and the wavelength converting element.
  • a portion of the support coupled to the wavelength converting element may be flexible and another (preferably major) portion of the support may be rigid so as to allow the rigid portion of the support to pivot relative to the wavelength converting element by bending the flexible portion.
  • the at least one support may comprise at least one bar, which preferably may be relatively thin for making it less visible.
  • the bar may be made of metal and/or rigid plastic.
  • the support may comprise a metal wire, which may simply be bent into the desired shape.
  • the lighting device as defined in anyone of the preceding embodiments may be manufactured by a method comprising providing a unit comprising the wavelength converting element arranged to be able to pivot relative to the at least one support, pivoting the wavelength converting element relative to the at least one support into a state enabling insertion of the unit in the envelope, inserting the unit in the envelope, and pivoting the wavelength converting element relative to the at least one support into a final state inside the envelope.
  • Fig. 1 is a partly cut-away view of a lighting device according to an embodiment.
  • Fig. 2 is a cross-section taken perpendicular to a longitudinal direction of a wavelength converting element of the lighting device.
  • Fig. 3 is a cross-section taken along the longitudinal direction of the wavelength converting element of the lighting device.
  • Fig. 4 illustrates the lighting device shown in Figure 1 being assembled.
  • Fig. 5 illustrates a method of manufacturing the lighting device shown in
  • Fig. 6 shows a lighting device according to another embodiment.
  • a lighting device 1 according to an embodiment will be described with reference to Figure 1 showing a perspective, partly cut-away view of the lighting device 1 and Figures 2 and 3 showing two different cross-sections of the lighting device 1.
  • the lighting device 1 may comprise a base 5 and an envelope 2 (which also may be referred to as a cover) directly or indirectly coupled to the base 5.
  • an opening 15 of the envelope 2 may be coupled to the base 5.
  • the base 5 may be adapted to mechanically and electrically connect the lighting device 1 to a light socket, which e.g. may be comprised in a light fitting.
  • the base 5 comprises a screw connection 13 for coupling the lighting device 1 to a screw type socket. Other connections may be envisaged, such as a bi-pin connection.
  • the lighting device 1 may further comprise one or more light sources 3, 4, such as solid state based light sources, which e.g. may be directly or indirectly coupled to the base 5.
  • the lighting device 1 may further comprise driving electronics 12 for driving the light sources 3, 4.
  • the driving electronics 12 may be comprised in (or coupled to) the base 2.
  • a heat sink 9 may be provided for cooling the light sources 3, 4 and preferably also the driving electronics 12.
  • the heat sink 9 may be comprised in (or coupled to) the base 5.
  • the heat sink 9 is coupled to the screw connection 13 and is at least partly covered by the envelope 2.
  • the envelope 2 may preferably be made in a single piece of material, such as glass or plastic.
  • the envelope 2 may be transparent (i.e. clear), so as to make the components inside the envelope 2 clearly visible.
  • the lighting device 1 may further comprise a wavelength converting element 8 arranged remote from, such as above, the light sources 3, 4.
  • the wavelength converting element 8 may be supported by one or more supports 7 inside the envelope 2.
  • the wavelength converting element 8 may comprise a light transmissive, such as transparent (i.e. clear), body at which wavelength converting material 6 may be arranged.
  • the wavelength converting material 6 is arranged in a pattern, such as a helix or double helix, on the light transmissive body.
  • the patterned wavelength converting material 6 may resemble a filament of a traditional incandescent lighting device.
  • the wavelength converting material 6 may e.g. comprise yellow and/or red phosphor.
  • a sleeve of phosphor 6 may be applied to the light transmissive body, e.g. by means of glue.
  • the phosphor may be dispersed in the material of the light transmissive body.
  • the light transmissive body may be hollow or solid.
  • the light transmissive body may be made of glass or rigid plastic.
  • one of the light sources 3 is arranged to emit ultraviolet (UV) light towards the wavelength converting element 8, which re-emits the light in a visible wavelength range, such as white, yellow or red.
  • the light source 3 may be adapted to emit UV-A light with a peak wavelength between 360 and 380 nm.
  • optics may be arranged to focus light emitted by the light source 3 towards the wavelength converting element 8.
  • the envelope 2 may preferably be arranged to absorb and/or reflect UV light so as to avoid UV light exiting the lighting device 1.
  • the envelope 2 may be coated with a UV absorbing coating. As UV light is not visible to the human eye, the light will appear as coming merely from the wavelength converting element 8.
  • a UV reflective coating (such as a dichroic coating) may be applied to the envelope 2 so as to reflect UV light back into the envelope 2 towards the wavelength converting element 8.
  • the lighting device 1 may comprise one or more additional light sources 4 adapted to emit light in the visible wavelength range (such as white, yellow, amber or red light) so as to provide additional light intensity of the lighting device 1.
  • a reflector may be arranged to reflect light emitted by the light sources 3, 4 towards the wavelength converting element 8.
  • the wavelength converting element 8 may have an elongated shape.
  • the wavelength converting element 8 is formed as a rod.
  • the wavelength converting element 8 may be arranged so as to extend inside the envelope 2 across an optical axis 10 of the lighting device 1.
  • a length L of the wavelength converting element 8 as measured along a longitudinal direction of the wavelength converting element 8 may be greater than a maximum width (e.g. diameter) D of the opening 15 of the envelope 2, as illustrated in Figure 3.
  • the maximum width W of the wavelength converting element 8 as measured across (such as perpendicular to) the longitudinal direction of the wavelength converting element 8 may be less than the maximum width D of the opening 15 of the envelope 2.
  • Each support 7 may be pivotally coupled to the wavelength converting element 8 so as to pivot around an axis 1 1.
  • a hinge connection between the wavelength converting element 8 and the supports 7 may be provided.
  • each support 7 is formed by a metal wire, a portion 16 of which extends through an aperture of the wavelength converting element 8, as illustrated in Figure 2. An end of the metal wire may be bent so as to keep the support in place with respect to the wavelength converting element 8.
  • the supports 7 may be mounted to the base 2 or, alternatively, to the envelope 2 (not shown).
  • the pivot axes 1 1 of the supports 7 may preferably extend across (such as perpendicular to) the longitudinal direction of the wavelength converting element 8 such that the supports 7 are able to pivot in a plane substantially parallel with the longitudinal direction of the wavelength converting element 8. Further, the pivot axes 1 1 may extend substantially in the same direction, such as substantially parallel to each other. Each support 7 may preferably extend mainly in a direction crossing (such as being substantially perpendicular to) the pivot axis 1 1 , preferably between the wavelength converting element 8 and the base 5, when mounted in a final position in the envelope 2.
  • FIG. 4 shows the lighting device 1 being assembled during manufacturing of the lighting device 1.
  • Figure 5 schematically illustrates the method of manufacturing the lighting device 1.
  • a unit 17 may first be provided 51 by pivotally mounting the supports 7 to the wavelength converting element 8, e.g. by inserting each metal wire 7 and bending an end of the metal wire 7 so as to lock the support 7 in the axial direction of the hinge.
  • the wavelength converting element 8 may then be pivoted 52 relative to the supports 7 into a state enabling insertion of the unit 17 in the envelope 2.
  • the supports 7 may be pivoted (or folded) so as to extend substantially along the longitudinal direction of the wavelength converting element 8, as illustrated in Figure 4.
  • the unit 17 may then be inserted 53 in the envelope 2, preferably via the opening 15.
  • the unit 17 may be inserted through the opening 15 along its longitudinal direction, as illustrated in Figure 4.
  • the unit 17 formed by the wavelength converting element 8 and the at least one support 7 may preferably be adapted such that the width of the unit 17 when the support 7 is folded against the wavelength converting element 8 (as illustrated in Figure 4) is less than the width (or diameter) of the opening 15, so as to enable the unit 17 to pass through the opening 15.
  • the wavelength converting element 8 When the unit 17 is positioned at least partially inside the envelope 2, the wavelength converting element 8 may be pivoted 54 relative to the supports 7 into a desired final state inside the envelope 2 (i.e., the state as illustrated e.g. in Figure 1).
  • the orientation of the wavelength converting element 8 may be tilted as desired by moving the supports 7 in their respective longitudinal directions.
  • the wavelength converting element 8 may be tilted so as to extend in a direction crossing the optical axis of the lighting device 1.
  • the base 5 may then be mounted 55 to the opening 15 of the envelope 2.
  • the base 5 may be provided with one or more holes 18, into which the one or more supports 7 may be inserted so as to attach the supports 7 to the base 5.
  • the holes 18 may e.g. be arranged in the heat sink 9.
  • FIG. 6 shows a lighting device 61, which may be similarly configured as the lighting device according the example described with reference to Figure 1 to 3, except that the supports 67 may comprise a rigid portion 66 and a flexible portion 69, wherein the flexible portions 69 connects the rigid portions 66 to the wavelength converting element 68.
  • the supports 67 are arranged to be able to pivot relative to the wavelength converting element 68 as the flexible portions 69 can be bent.
  • the flexible portions 69 may e.g. comprise a bendable thin metal wire.
  • the rigid portions 66 may e.g. comprise a rigid tube, bar or the like made e.g. of plastic or glass.
  • the lighting device 61 may be

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage (1) comprenant au moins une source lumineuse (3), un élément de conversion de longueur d'onde (8) conçu pour convertir une longueur d'onde de la lumière émise par ladite source lumineuse, au moins un support (7) agencé pour soutenir l'élément de conversion de longueur d'onde à distance de ladite source lumineuse, et une enveloppe (2) conçue pour renfermer l'élément de conversion de longueur d'onde et au moins une partie dudit support. Ledit support est agencé de façon à être apte à pivoter par rapport à l'élément de conversion de longueur d'onde. Le présent dispositif d'éclairage permet d'utiliser un élément de conversion de longueur d'onde rigide et un support au moins partiellement rigide, car ces deux composants peuvent être déplacés l'un par rapport à l'autre pour faciliter l'insertion de l'unité dans l'enveloppe.
EP15749748.8A 2014-08-18 2015-07-24 Dispositif d'éclairage à élément de conversion de longueur d'onde à distance Withdrawn EP3183490A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14181229 2014-08-18
PCT/EP2015/067037 WO2016026652A1 (fr) 2014-08-18 2015-07-24 Dispositif d'éclairage à élément de conversion de longueur d'onde à distance

Publications (1)

Publication Number Publication Date
EP3183490A1 true EP3183490A1 (fr) 2017-06-28

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EP15178310.7A Active EP2988055B1 (fr) 2014-08-18 2015-07-24 Dispositif d'éclairage avec élément de conversion de longueur d'onde à distance
EP15749748.8A Withdrawn EP3183490A1 (fr) 2014-08-18 2015-07-24 Dispositif d'éclairage à élément de conversion de longueur d'onde à distance

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US (2) US20170284610A1 (fr)
EP (2) EP2988055B1 (fr)
JP (1) JP6334056B2 (fr)
CN (1) CN106574752B (fr)
RU (1) RU2686853C2 (fr)
WO (1) WO2016026652A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11073248B2 (en) 2014-09-28 2021-07-27 Zhejiang Super Lighting Electric Appliance Co., Ltd. LED bulb lamp
US11690148B2 (en) 2014-09-28 2023-06-27 Zhejiang Super Lighting Electric Appliance Co., Ltd. LED filament and LED light bulb
US11686436B2 (en) 2014-09-28 2023-06-27 Zhejiang Super Lighting Electric Appliance Co., Ltd LED filament and light bulb using LED filament
US11085591B2 (en) * 2014-09-28 2021-08-10 Zhejiang Super Lighting Electric Appliance Co., Ltd LED light bulb with curved filament
JP2017091866A (ja) * 2015-11-12 2017-05-25 キヤノン株式会社 発光装置

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB187904576A (en) * 1879-11-04 Thomas Alva Edison Incandescent lamps
US2904710A (en) * 1957-04-19 1959-09-15 Gen Electric Reflector mercury lamp mount
US4341975A (en) * 1980-06-12 1982-07-27 General Electric Company Jacketed lamp having transversely mounted arc tube
US4936807A (en) * 1989-02-17 1990-06-26 North American Philips Corporation Method of assembling an electric lamp having a canted arc tube
US5229681A (en) * 1989-10-10 1993-07-20 Musco Corporation Discharge lamp with offset or tilted arc tube
US4990819A (en) * 1989-11-06 1991-02-05 North American Philips Corporation HID lamp having a canted arc tube and frame with rotary locking joints
US5856721A (en) * 1994-09-08 1999-01-05 Gordin; Myron K. Discharge lamp with offset or tilted arc tube
TW455908B (en) 1999-04-20 2001-09-21 Koninkl Philips Electronics Nv Lighting system
DE20018435U1 (de) * 2000-10-27 2001-02-22 Shining Blick Entpr Co Glühbirne mit darin enthaltenen biegbaren Lampenbirnchen
AU2003237408B2 (en) * 2002-06-06 2008-02-21 Ilight Technologies, Inc. Illumination device for simulating neon lighting through use of fluorescent dyes
US20040008525A1 (en) * 2002-07-09 2004-01-15 Hakuyo Denkyuu Kabushiki Kaisha: Fuso Denki Kougyou Kabushiki Kaisha LED electric bulb
WO2004100213A2 (fr) * 2003-05-05 2004-11-18 Gelcore Llc Ampoule electrique a del
US20060023452A1 (en) * 2004-07-28 2006-02-02 Kuo-Yen Lai Scanning illumination module
PT4008949T (pt) * 2004-09-29 2024-02-21 Signify Holding Bv Dispositivo de iluminação
US7618175B1 (en) * 2005-07-08 2009-11-17 Ilight Technologies, Inc. LED lighting system with helical fiber filament
US20090026982A1 (en) * 2007-07-24 2009-01-29 American Bright Lighting, Inc. Structure for LED lamp and method for forming the improved structure
US7810954B2 (en) * 2007-12-03 2010-10-12 Lumination Llc LED-based changeable color light lamp
JP2010055830A (ja) * 2008-08-26 2010-03-11 Panasonic Electric Works Co Ltd Ｌｅｄ電球およびｌｅｄ照明器具
US8004172B2 (en) * 2008-11-18 2011-08-23 Cree, Inc. Semiconductor light emitting apparatus including elongated hollow wavelength conversion tubes and methods of assembling same
US20100123393A1 (en) * 2008-11-19 2010-05-20 Koninklijke Philips Electronics N.V. Hid lamp with a canted arc tube
JP5317848B2 (ja) 2009-06-25 2013-10-16 株式会社タキオン Ｌｅｄ電灯装置
US20120286643A1 (en) * 2009-11-12 2012-11-15 Opalux Incorporated Photonic Crystal Incandescent Light Source
US8466611B2 (en) * 2009-12-14 2013-06-18 Cree, Inc. Lighting device with shaped remote phosphor
US10359151B2 (en) * 2010-03-03 2019-07-23 Ideal Industries Lighting Llc Solid state lamp with thermal spreading elements and light directing optics
US9057511B2 (en) * 2010-03-03 2015-06-16 Cree, Inc. High efficiency solid state lamp and bulb
US9062830B2 (en) * 2010-03-03 2015-06-23 Cree, Inc. High efficiency solid state lamp and bulb
JP5039164B2 (ja) * 2010-03-08 2012-10-03 株式会社東芝 発光装置
JP5161908B2 (ja) * 2010-03-10 2013-03-13 株式会社東芝 発光装置
CN102483201B (zh) * 2010-07-20 2015-08-19 松下电器产业株式会社 灯泡型灯
JP5556547B2 (ja) * 2010-09-30 2014-07-23 三菱電機株式会社 光源ユニット
BR112013015643A2 (pt) * 2010-12-22 2016-10-11 Koninkl Philips Electronics Nv dispositivo de iluminação para prover iluminação decorativa e método de fabricação de um dispositivo de iluminação para prover iluminação decorativa
CN102829437B (zh) 2011-06-15 2015-04-01 光宝科技股份有限公司 光罩及具光罩的灯具
DE102011085646A1 (de) 2011-11-03 2013-05-08 Osram Gmbh Halbleiterlampe mit Kolben
RU134286U1 (ru) * 2013-04-05 2013-11-10 Сергей Александрович Панин Светодиодный источник белого света
CN203517383U (zh) 2013-09-16 2014-04-02 深圳市宇亮光电技术有限公司 新型led灯泡
CN103486476B (zh) * 2013-09-27 2015-05-20 重庆大学 一种光纤灯丝球泡灯
US9285086B2 (en) * 2013-11-08 2016-03-15 Corning Incorporated Light diffusing optical fibers and light emitting apparatuses including light diffusing optical fibers
CN104019395A (zh) * 2014-06-19 2014-09-03 无锡天地合同能源管理有限公司 一种球泡灯
US9534741B2 (en) * 2014-07-23 2017-01-03 Cree, Inc. Lighting devices with illumination regions having different gamut properties
US9488767B2 (en) * 2014-08-05 2016-11-08 Cree, Inc. LED based lighting system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2016026652A1 *

Also Published As

Publication number Publication date
RU2017108748A (ru) 2018-09-20
US20160047514A1 (en) 2016-02-18
JP2017523583A (ja) 2017-08-17
RU2017108748A3 (fr) 2019-03-01
CN106574752A (zh) 2017-04-19
US20170284610A1 (en) 2017-10-05
CN106574752B (zh) 2019-10-18
RU2686853C2 (ru) 2019-05-06
US9909724B2 (en) 2018-03-06
WO2016026652A1 (fr) 2016-02-25
EP2988055A1 (fr) 2016-02-24
EP2988055B1 (fr) 2017-03-29
JP6334056B2 (ja) 2018-05-30

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